GostCrypt is described as 'The Gostcrypt project has been launched at the end of 2013 as fork of the (late) Truecrypt project'. There are more than 50 alternatives to GostCrypt for a variety of platforms, including Windows, Mac, Linux, Android and iPhone. The best alternative is VeraCrypt, which is both free and Open Source. Other great apps like GostCrypt are TrueCrypt (Free, Open Source), Windows BitLocker (Paid), LUKS (Free, Open Source) and Encrypto (Free).
SecurStick is a free portable application that lets you carry encrypted files on your USB drive. You can use the drive on any computer to access and modify those files WITHOUT needing any administrator privileges. Available languages: English, German and Italian.
Challenger is a software for the encoding of files, folders and drives. For the installation and for the execution simple user rights suffice. Thereby the program is mobil usable on an USB flash drive too.
Safely encrypt sensitive data On PCs, in networks and in the Cloud Confidential documents, business records and TAN lists all belong in a safe place. Steganos Safe 18 is a digital vault that protects everything you don’t want anyone else to see.
ImmediateCrypt is an utility for encryption and decryption of plain text messages with the AES-256 cipher. It is released under the GPLv3 license (full Java source available) and works under any Java-enabled environment (Windows, Linux and Mac OSX).